<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="http://perdu.com/form" method="POST">
    <input type="text" name="name" value="doe" />
    <input type="submit" value="Go" />
    <button type="submit" formaction="">Submit to another page</button>
</form>

<form action="http://perdu.com/form2" method="POST">
    <input type="text" name="name2" value="doe" />
    <input type="submit" value="Go" formaction="" />
    <button type="submit">Submit</button>
</form>


</body>
</html>